8 3 8 4 what symbol is added to make the number equal to 24
8*3!/ 8*4=24
Use 3, - 4,6, - 13 to form a formula so that the result is equal to 24 or - 24
You can use addition, subtraction, multiplication, division, square and parenthesis, and each number can't be repeated
(3 + 13) ÷ four × 6 =24
Given the rational number 4,6,9,12, please write a formula so that the result is 24
(9-6) ×( 12-4)=24
RELATED INFORMATIONS
- 1. With +- × ÷ Make 5,6,11,13 into a formula with brackets so that the result is 24, and use all four,
- 2. 3,12, - 1, - 12 how to make the result of the formula equal to 24 or - 24
- 3. 12 × 42 is equal to 24 × 21
- 4. Calculate 24 points 1,3,6,8 2,4,7,8
- 5. Use 3,4,6,10 to calculate 24 points by addition, subtraction, multiplication and division
- 6. It takes Xiaoqiang six days to finish reading a story book. What's the average daily reading percentage? What's the percentage in three days? Five days?
- 7. Lele read a story book. On the first day, she read 1 / 3 of the whole book. On the second day, she read 3 / 8 of the whole book. The rest of the story book should start from 69 pages. How many pages of the story book
- 8. There are 100 pages in a story book. Xiao Hong read 1 / 4 of the book and 1 / 6 of the book the next day. How many parts of the book are left?
- 9. Xiao Dong reads 4 / 5 of a story book in 12 days, and what is the average daily reading rate of this story book?
- 10. Xiao Jun read a story book. On the first day, he read 15% of the whole book. On the second day, he read 12% of the whole book. There are 146 pages left? (find out the unit "1" relation
- 11. Add a mathematical sign to 1 23 4 5 6 7 8 9 so that the number is 1
- 12. 9 / 1 9 / 1 9 / 1 9 / 1 9 / 1 9 / 1 no matter what mathematical sign is added in the middle, the number will be zero
- 13. If the product of three rational numbers is negative, then the number of negative factors is ()
- 14. The product of three rational numbers is negative. Among the three rational numbers, there are two______ A negative number
- 15. If the product of 100 rational numbers is positive, the number of negative numbers is the most______ The sum of all possible negative numbers is______ .
- 16. If the sum of two numbers is negative, then the two numbers must be () A. Both positive numbers B. both negative numbers C. one positive and one negative D. cannot be determined
- 17. If the opposite number of a is - A and the opposite number of - A is a, then a must be an integer and - a must be negative. Why? Come on, I have to sleep and read tomorrow?
- 18. If the letter A is used to represent a positive number, what number does - a represent? What is the relationship between - A and - A on the number axis? If the letter a represents a negative number? If the letter a represents 0?
- 19. Do 24 math problems With 3 5's and 1's, you can add, subtract, multiply, divide and bracket. How can you calculate 24?
- 20. Several simple mathematical problems 1. It is known that the m-2n power of X, the M-1 power of Y and the 6-n power of - 3x, the cubic power of Y are the same kind of terms, and the value of M and N can be obtained 2. Given that the sum of the quadratic power of the polynomial 2x + my-12 and the quadratic power of the polynomial NX - 3Y + 6 does not contain X and Y terms, we can find the value of Mn 3. Party A bought a mobile phone from other places for 3820 yuan and sold it to Party B for 3880 yuan. Party B sold it to Party C for 3900 yuan and Party C sold it to Party A for a loss of 10 yuan. Party a sold it to Party B for 30 yuan cheaper based on the price that Party C sold to him. Party B sold it to Party C for 3840 yuan and Party C sold it to Party A for 3000 yuan, In the end, Party A gave it to an intermediary at the price of 3100 yuan. In this process, did Party A, Party B and Party C lose or earn? How much did they lose or earn? Note: write the formula for each question!